> For the complete documentation index, see [llms.txt](https://dontplaywithkitty.gitbook.io/dontplaywithkitty/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dontplaywithkitty.gitbook.io/dontplaywithkitty/4.-brave-world-gameplay/4.4-hero-synthesis-system.md).

# 4.4 Hero Synthesis System

Players can use their low-quality hero NFT they have and synthesize to high-quality heroes through the synthesis system. Hero synthesis consumption is based on USDT in constrain on equal values of 50% DPWK and 50% KIT tokens.

**The synthesis rules are as follows:**

Purple-orange-red 5 star-red 6 star, the quality is synthesized from low to high.

Low-quality heroes must be the same in order to synthesis.

It requires 4 purple heroes to synthesize an orange quality hero.

It requires 4 orange heroes to synthesize a red 5-star quality hero.

It requires 6 red 5-star heroes to synthesize a red 6-star quality hero.

The synthesized hero cannot be specified by the player, it will be randomly chosen from a one class higher heroes.

**Synthesis cost is as follows:**

Hero synthesis consumption is based on USDT in constrain on equal values of 50% DPWK and 50% KIT tokens.

![](https://3016971144-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MkFWWQSr2gMnZp9rzFN%2Fuploads%2F3uAUzTCsreZ3UtuwCqYO%2F28.png?alt=media\&token=ca88978f-01b3-4f00-8f9c-2c7dd8370847)

For example: 15 USDT is required to synthesize orange quality hero NFT, which is about 14.4 DPWK tokens (based on 1USDT=1.92 DPWK) and 1,366,657,500 KIT tokens (based on 1 USDT= 182,221,000 KIT) .